Outer spherical precision bearing Its outer ring outer diameter surface is spherical Mainly used for bearing radial load mainly radialThe outer spherical bearings are preferentially used in situations requiring simple equipment and parts, such as agricultural machinery, transportation system or construction machinery. Mainly used to bear radial load mainly radial and axial combined load, generally not alone to bear axial load, this kind of bearing can be installed respectively inner ring (with a full set of rollers and retainer) and outer ring. The bearing does not allow the shaft to be tilted relative to the housing, and additional axial force will be generated under radial load. The size of axial clearance of this kind of bearing has a great relation to the normal operation of the bearing. When the axial clearance is too small, the temperature rise is higher. When the axial clearance is large, the bearing is easy to be damaged. Therefore, special attention should be paid to adjusting the axial clearance of bearings during installation and operation. If necessary, pre-interference installation can be used to increase the rigidity of bearings.